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Int J Syst Evol Microbiol 56 (2006), 2893-2897; DOI  10.1099/ijs.0.64430-0
© 2006 International Union of Microbiological Societies

Isoptericola dokdonensis sp. nov., isolated from soil

Jung-Hoon Yoon1, Peter Schumann2, So-Jung Kang1, Seo-Youn Jung1 and Tae-Kwang Oh1

1 Korea Research Institute of Bioscience and Biotechnology (KRIBB), Laboratory of Microbial Function, PO Box 115, Yusong, Taejon, Korea
2 DSMZ – Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg 1b, D-38124 Braunschweig, Germany

Correspondence
Jung-Hoon Yoon
jhyoon{at}kribb.re.kr

A Gram-positive, non-motile, rod- or coccoid-shaped Isoptericola-like bacterium, strain DS-3T, was isolated from a soil sample from Dokdo, Korea, and its taxonomic position was investigated by a polyphasic approach. The organism grew optimally at 30 °C and pH 7.0–8.0. Strain DS-3T had the peptidoglycan type based on L-lys–D-Asp, and galactose, glucose, rhamnose and ribose as the whole-cell sugars. It contained MK-9(H4) as the predominant menaquinone and anteiso-C15 : 0 and iso-C15 : 0 as the major fatty acids. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and two unidentified glycolipids. The DNA G+C content was 74.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-3T was most closely related to members of the genus Isoptericola. Similarity values between the 16S rRNA gene sequences of strain DS-3T and the type strains of Isoptericola species ranged from 98.0 to 98.4 %. DNA–DNA relatedness values (11–23 %) and differential phenotypic properties demonstrated that strain DS-3T was distinguishable from recognized Isoptericola species. On the basis of phenotypic properties and phylogenetic and genetic distinctiveness, strain DS-3T represents a novel species in the genus Isoptericola, for which the name Isoptericola dokdonensis sp. nov. is proposed. The type strain is DS-3T (=KCTC 19128T=CIP 108921T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain DS-3T is DQ387860.






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Copyright © 2006 by the International Union of Microbiological Societies.